Transcript for Worried Owners Search for Pets Lost in Superstorm Sandy

The animals, so many caught up in hurricane sandy. Owners separated from their pets in all of the chaos and destruction. And now, finding lost pets can be a huge challenge. Abc's paula faris has been following how social media is leading to those reunions. Reporter: In the chaos and confusion of sandy, as families fled and entire towns evacuated, some were left behind. Beloved pets, lost in moments of panic. Your dogs mean what to you? Don't get me on that. They're my life. They're like my family. Reporter: This morning, new jersey resident jeanie johnson's dogs are home, after a harrowing night. I let my dogs out for a last run. When I called for the dogs to come back, I realized the fence was down. Reporter: Johnson sat in her car monday, charged her phone and posted their picture on a local blog. Then, she waited. One of thousands of owners hoping to reunite with their animals thanks to social media. On this facebook page, hurricane sandy lost and found pets" reports by the seconds. Dogs, birds, cats missing. And lack of power is threatening to displace 12,000 animals in the new york aquarium, from walruses, sharks, and even this seal. A few days ago, he saw johnson's st. He heard howls. Shortly after midnight, he found johnson sitting in her car and returned her dogs. Pretty emotional. Reporter: This reunion proves that even in broken communities, there are small miracles in the aftermath of the storm. There's more good in people than bad. And we are just incredibly blessed. Reporter: Now, many animals are turning up in shelters that don't have proper identification. Such as a collar or microchip. And the average microchip costs roughly $40. In this situation, it's money well spent.

This transcript has been automatically generated and may not be 100% accurate.

Would a Sea Wall Stop Dangerous Storm Surge?

Some experts say it is possible to build special sea barriers to protect vulnerable coastal cities.

{"id":17624400,"title":"Worried Owners Search for Pets Lost in Superstorm Sandy","duration":"3:00","description":"Families separated from their beloved pets use social media to find their furry friends.","section":"GMA","mediaType":"Default"}